That's OK, you just missed it is all, you already had the paint you bought anyway. Here's my post:
http://www.knifenetwork.com/forum/sh...856#post481856
Engines get very hot so that paint should do for a while. I wouldn't worry about baking it in an oven though, I doubt many backyard mechanics can bake their engines in an oven. The paint should say on the can somewhere what temperature it will withstand but I'm guessing it will be far short of 1200 F but as long as the fire stays inside the forge you'll get by ...
PS
I just googled VHT paint, looks like good stuff. Some of their products seem to quit at 520F but their header paint is rated to 2000F ! So, depending on which one you have you could be sitting pretty, paint wise ....